Desa Tech HEATERS OWNER'S MANUAL owner manual Preventative Maintenance Schedule, How Often, How To

PREVENTATIVE MAINTENANCE SCHEDULE

WARNING: Never service heater while it is plugged in, operating or hot. Severe burns and electrical shock can occur.

Item	How Often	How To
Fuel tank	Flush every150-200hoursofoperation	See Storing, Transporting or
	or as needed	Shipping, page 6
Filler neck screen	Check for particles in fuel when filling	Lift out of fuel tank and rinse with
	fuel tank. Clean when dirty	clean kerosene
Fuel filter assembly (Fuel	Clean twice a heating season or replace	See Fuel Filters, page 14
tank)	as needed
Fuel filter lines	Check and tighten loose connections	See Fuel Lines, page 13
	occasionally
Fuel filter (In pump or ex-	Clean fuel filter element every 250	See Fuel Filters, page 14
ternal canister)	hours
Spark plug	Clean and regap every 300 hours of	See Spark Plug, page 11
	operation or replace as needed
Fan blades and air	Clean each season or as needed	See Fan Blades and Air Deflec-
deflectors		tors, page 11
Air passages around burner	Check each season for dirt and	Remove debris and trash with a
head	debris	clean, soft cloth
Motor	Not required, permanently lubricated

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